Global Patent Index - EP 2156094 B1

EP 2156094 B1 20151014 - BLOW-OFF TANK FOR HEAT RECOVERY STEAM GENERATORS

Title (en)

BLOW-OFF TANK FOR HEAT RECOVERY STEAM GENERATORS

Title (de)

ABBLASEBEHÄLTER FÜR ABWÄRME-DAMPFERZEUGER

Title (fr)

RÉSERVOIR DE DÉCHARGE POUR GÉNÉRATEURS DE VAPEUR À RÉCUPÉRATION DE CHALEUR

Publication

EP 2156094 B1 (EN)

Application

EP 08755394 A

Priority

  • US 2008063531 W
  • US 93885307 P

Abstract (en)

[origin: WO2008144313A2] A blowoff tank (B) for receiving blowdown, blowoff, and drain water from an HRSG (C) or other type of boiler, so as to lower the temperature of that water enough to enable it to be discharged into a sewer system, includes a generally cylindrical vessel (50) and inlet pipes (60) through which the blowdown, blowoff, and drain water is introduced into the vessel. Each pipe has a radial segment (62) that passes through the sidewall (52) of the vessel, a generally vertical segment (64) that extends upwardly within the vessel, and a tangential segment (68) that opens into the vessel. The radial segment contains a small drain aperture (74). The tank also has a cooling line (90) through which cooling water is introduced into the vessel to lower the temperature of the blowdown, blowoff, and drain water in the vessel and a drain line (86) that drains the mixture of cooling water and blowdown, blowoff, and drain water from the vessel, but never exceeds the elevation of the apertures in the inlet pipes. Thus, once blowdown, blowoff, and draining are completed, water will drain from the inlet pipes and from lines connected to them, all into vessel and thereby reduce a source of corrosion and a cause of water hammer in the lines.

IPC 8 full level

F22B 37/48 (2006.01); B01D 21/24 (2006.01); F22B 37/54 (2006.01)

CPC (source: EP US)

F22B 37/54 (2013.01 - EP); Y10T 137/0374 (2015.04 - EP US); Y10T 137/2087 (2015.04 - EP US); Y10T 137/3021 (2015.04 - EP US); Y10T 137/86372 (2015.04 - EP US)

Citation (examination)

US 1924771 A 19330829 - BROWN ALBERT C, et al

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2008144313 A2 20081127; WO 2008144313 A3 20091203; CA 2687524 A1 20081127; CA 2687524 C 20130820; EA 016587 B1 20120629; EA 200901420 A1 20100630; EP 2156094 A2 20100224; EP 2156094 B1 20151014; KR 101332592 B1 20131125; KR 20100032849 A 20100326; MX 2009012424 A 20100115; US 2010147393 A1 20100617; US 8381770 B2 20130226

DOCDB simple family (application)

US 2008063531 W 20080513; CA 2687524 A 20080513; EA 200901420 A 20080513; EP 08755394 A 20080513; KR 20097023989 A 20080513; MX 2009012424 A 20080513; US 60048608 A 20080513